diff --git a/src/level/robotmain.cpp b/src/level/robotmain.cpp
index ff3ae3bc..e1fb2392 100644
--- a/src/level/robotmain.cpp
+++ b/src/level/robotmain.cpp
@@ -107,6 +107,7 @@
 
 #include <iomanip>
 #include <stdexcept>
+#include <ctime>
 
 #include <boost/lexical_cast.hpp>
 
diff --git a/src/ui/studio.cpp b/src/ui/studio.cpp
index b07b6315..483d89b7 100644
--- a/src/ui/studio.cpp
+++ b/src/ui/studio.cpp
@@ -62,6 +62,7 @@
 #include "ui/controls/window.h"
 
 #include <stdio.h>
+#include <ctime>
 
 
 namespace Ui